Transmission main housing



FIG. 1 is a front perspective view of the transmission main housing;

FIG. 2 is a front planar view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines show portions of a transmission main housing that formno part of the claimed design.

CLAIM The ornamental design for a transmission main housing, as shownand described.